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1,716
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Media Type
1,617
texts
63
movies
28
audio
5
data
3
images
Topics & Subjects
672
Irrigation
129
IRRIGATION
125
NASA Technical Reports Server (NTRS)
113
Water-supply
110
irrigation
72
DTIC Archive
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Collection
1,069
American Libraries
403
FEDLINK - United States Federal Collection
375
The National Agricultural Library
157
California Digital Library
125
NASA Network Resource and Training Site
115
University of California, Davis Libraries
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Creator
125
nasa technical reports server (ntrs)
72
defense technical information center
32
montana.state engineer
27
federation of tree growing clubs of america
24
united states. soil conservation service
22
mead, elwood, 1858-1936
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Language
1,542
English
37
French
20
Italian
10
Spanish
4
Arabic
3
Chinese
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